Artifact Free Transient Near-Field Nanoscopy
arXiv:1706.08478
Abstract
We report on the first implementation of ultrafast near field nanoscopy carried out with the transient pseudoheterodyne detection method (Tr-pHD). This method is well suited for efficient and artifact free pump-probe scattering-type near-field optical microscopy with nanometer scale resolution. The Tr-pHD technique is critically compared to other data acquisition methods and found to offer significant advantages. Experimental evidence for the advantages of Tr-pHD is provided in the Near-IR frequency range. Crucial factors involved in achieving proper performance of the Tr-pHD method with pulsed laser sources are analyzed and detailed in this work. We applied this novel method to time-resolved and spatially resolved studies of the photo-induced effects in the insulator-to-metal transition system vanadium dioxide with nanometer scale resolution.
arXiv comment37 pages, 6 figures
References in corpus (19)
- Gate-tuning of graphene plasmons revealed by infrared nano-imaging
- Complexity in Strongly Correlated Electronic Systems
- Mott transition in VO2 revealed by infrared spectroscopy and nano-imaging
- Measurement of the optical dielectric function of transition metal dichalcogenide monolayers: MoS2, MoSe2, WS2 and WSe2
- Electrodynamics of Correlated Electron Materials
- Ultrafast switching to a stable hidden topologically protected quantum state in an electronic crystal
- Ultrafast single-nanowire multi-terahertz spectroscopy with sub-cycle temporal resolution
- Imaging exciton-polariton transport in MoSe2 waveguides
- Nonlinear light-matter interaction at terahertz frequencies
- Ultrafast Insulator-Metal Phase Transition in VO2 Studied by Multiterahertz Spectroscopy
- Infrared spectroscopy and nano-imaging of the insulator-to-metal transition in vanadium dioxide
- Ultrafast mid-infrared nanoscopy of strained vanadium dioxide nanobeams
- THz-Frequency Modulation of the Hubbard U in an Organic Mott Insulator
- Ultrafast THz Field Control of Electronic and Structural Interactions in Vanadium Dioxide
- Triply degenerate nodal points in RERhGe (RE=Y, La, Lu)
- Topological insulators are tunable waveguides for hyperbolic polaritons
- Mesoscopic structural phase progression in photo-excited VO2 revealed by time-resolved x-ray diffraction microscopy
- Random Field Driven Spatial Complexity at the Mott Transition in VO2
- Infrared nano-spectroscopy and imaging of collective superfluid excitations in conventional and high-temperature superconductors